Wiring question

Building your own? Need help with your designs? You've come to the right place.
AKA Wayne
Posts: 255
Joined: Thu Dec 26, 2019 6:12 pm

Wiring question

Post by AKA Wayne »

I have a diy snare with the head and rim each hooked up to their own trimpot. When I test continuity I get a continuous circuit between the t-s, r-s and t- r. I should not be getting a signal between the tip and ring right? This indicates a short somewhere? Thanks for the help.
thenewdrummer
Posts: 173
Joined: Mon Aug 31, 2020 11:25 pm

Re: Wiring question

Post by thenewdrummer »

Yeah there's a short.

Two cases for me that happened. Maybe it could help find yours

1) In the jack or input Jack, The cover that's hide the wires, is touching 2 wires or somethingtthat creates the short. I added small strips of electrical tape to ensure that nothing touch nothing

2) The my wired were touching each other even if they didn't look like.
Because of the way they were connected to the input jack.

Try isolating some parts. Example, test only your cable, if there's something, they test only one end at the time etc

Start with your cable to ensure that it's not the problem. It will be easier to eliminate cases.
AKA Wayne
Posts: 255
Joined: Thu Dec 26, 2019 6:12 pm

Re: Wiring question

Post by AKA Wayne »

Thanks! When testing the cable only I would unplug both ends and I should not get continuity between anything right?
User avatar
Rob
Site Admin
Posts: 4645
Joined: Sat Aug 01, 2009 2:04 pm

Re: Wiring question

Post by Rob »

That's correct. But you should get continuity between both tip connections on either end of the cable. Same for ring and sleeve.
AKA Wayne
Posts: 255
Joined: Thu Dec 26, 2019 6:12 pm

Re: Wiring question

Post by AKA Wayne »

Thanks Rob. Am I right in thinking this could be the cause of HSS not functioning?
thenewdrummer
Posts: 173
Joined: Mon Aug 31, 2020 11:25 pm

Re: Wiring question

Post by thenewdrummer »

AKA Wayne wrote:Thanks Rob. Am I right in thinking this could be the cause of HSS not functioning?
You could try testing 1 end of at the time that there's no short between s r, s t, r t. That way you know the one that is broken and also you can test the continuity between 2 sides.

Yes it could be that, that's causing the HSS not working. What I read is that short can cause spikes and send a strange signal to analyze.

Also check that the cone is 2mm from the head. Also the head more tight seem to improve the HSS detection.

I had difficulty using a 35mm piezo with a trimpot. When reducing the signal the HSS stopped working but I'm sure that was something on my side that I was doing wrong.

So switched toa 27mm piezo.
AKA Wayne
Posts: 255
Joined: Thu Dec 26, 2019 6:12 pm

Re: Wiring question

Post by AKA Wayne »

thenewdrummer wrote:
AKA Wayne wrote:Thanks Rob. Am I right in thinking this could be the cause of HSS not functioning?
You could try testing 1 end of at the time that there's no short between s r, s t, r t. That way you know the one that is broken and also you can test the continuity between 2 sides.

Yes it could be that, that's causing the HSS not working. What I read is that short can cause spikes and send a strange signal to analyze.

Also check that the cone is 2mm from the head. Also the head more tight seem to improve the HSS detection.

I had difficulty using a 35mm piezo with a trimpot. When reducing the signal the HSS stopped working but I'm sure that was something on my side that I was doing wrong.

So switched toa 27mm piezo.
Thanks for that info. That is my exact set up. 35mm piezo w a trimpot. How are the results now that you’ve downsized? I’m thinking of doing the same thing after finishing the short.
thenewdrummer
Posts: 173
Joined: Mon Aug 31, 2020 11:25 pm

Re: Wiring question

Post by thenewdrummer »

AKA Wayne wrote:
thenewdrummer wrote:
AKA Wayne wrote:Thanks Rob. Am I right in thinking this could be the cause of HSS not functioning?
You could try testing 1 end of at the time that there's no short between s r, s t, r t. That way you know the one that is broken and also you can test the continuity between 2 sides.

Yes it could be that, that's causing the HSS not working. What I read is that short can cause spikes and send a strange signal to analyze.

Also check that the cone is 2mm from the head. Also the head more tight seem to improve the HSS detection.

I had difficulty using a 35mm piezo with a trimpot. When reducing the signal the HSS stopped working but I'm sure that was something on my side that I was doing wrong.

So switched toa 27mm piezo.
Thanks for that info. That is my exact set up. 35mm piezo w a trimpot. How are the results now that you’ve downsized? I’m thinking of doing the same thing after finishing the short.
Really better, but I'm new at all those settings so I'm sure I did a lot of things wrong.

But in theory, trimpot should do the same as downsizing. When I used it, I wasn't aware of the head tension that played a big role. I would continue with it if I were you. You can adjust more with it.

Definitely, fix the short before anything else. It shouldn't be difficult to find the problem.
AKA Wayne
Posts: 255
Joined: Thu Dec 26, 2019 6:12 pm

Re: Wiring question

Post by AKA Wayne »

So turns out there was no short problem. I was detecting the resistance from the trimpots. When set to the correct setting in the multimeter I get no continuity between tip, ring or sleeve. That is correct right?
AKA Wayne
Posts: 255
Joined: Thu Dec 26, 2019 6:12 pm

Re: Wiring question

Post by AKA Wayne »

So turns out there was no short problem. I was detecting the resistance from the trimpots. When set to the correct setting in the multimeter I get no continuity between tip, ring or sleeve. That is correct right?
Post Reply